I'm experimenting with some procedural ways to create dunes, but I'm experiencing some issues with the color ramp. I want the top to be (close to) pefeclty sharp, but right now it is sort of beveled. Is this a limitation/issue with the color ramp and is there any way I can get rid of it?

Render of Dune Dune Nodes

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    $\begingroup$ I would guess it's because your lighter value is clipping past the maximum "white". Try lowering the value somewhere in your node setup. $\endgroup$ – Mentalist Jan 23 '18 at 11:42

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